Abstract: A roller for an image forming apparatus comprises: a core body having a shaft positioned in the center thereof, the core body being formed by solidifying a fluid around an outer circumference of the shaft; and a surface layer formed on a surface of said core body, the surface layer being made of hard rubber and having a uniform thickness over the surface of the core body. A mold for the roller, comprises: an inner surface whose section is the same as a section of the core body; a pair of half-split bodies, one end wall of each half-split body having a recess for clamping the shaft, other end wall of each half-split body having a injecting hole for injecting a core body forming fluid therefrom; and a stopper body serving as an aligning member having a through hole in the middle thereof for inserting the shaft thereinto, the stopper body further projecting a stopper on an outer circumference thereof for fitting the stopper into the injecting hole.

Abstract: A roller for an image forming apparatus comprises: a core body having a shaft positioned in the center thereof, the core body being formed by solidifying a fluid around an outer circumference of the shaft; and a surface layer formed on a surface of said core body, the surface layer being made of hard rubber and having a uniform thickness over the surface of the core body. A mold for the roller, comprises: an inner surface whose section is the same as a section of the core body; a pair of half-split bodies, one end wall of each half-split body having a recess for clamping the shaft, other end wall of each half-split body having a injecting hole for injecting a core body forming fluid therefrom; and a stopper body serving as an aligning member having a through hole in the middle thereof for inserting the shaft thereinto, the stopper body further projecting a stopper on an outer circumference thereof for fitting the stopper into the injecting hole.

Abstract: A detachable-type vehicle sun shade apparatus is disclosed for use in vehicles having glass sun roofs installed between a center roof material and an exterior panel, both of which define an opening. The opening has a flange mounted trim strip therearound and a holder is mounted along a first edge of the opening. A sun shade has a first edge receivable between the holder and the trim strip. A stopper is rotatably mounted on the sun shade adjacent the second edge of the sun shade, with the stopper including edge engaging structure for engaging the trim strip along a second edge of the opening which is adjacent the second edge of the sun shade. A knob is provided for rotating the stopper and bringing the edge engaging structure into engagement with the trim strip along the second edge of the opening.

Abstract: Ceramic materials for cutting tools are described, comprising molding a powder mixture comprising (a) Al.sub.2 O.sub.3, (b) TiN, and (c) at least one of ZrC, Zr, and ZrN, wherein component (a) constitutes between 25 and 80% of the total volume of the powder mixture and the volume ratio of component (c) to component (b) is 1/2 or less, and sintering the molded powder in vacuum or in an inert atmosphere. A process for production thereof is also described.

Abstract: An interlocking mechanism of both-side lock recliner for an automotive seat which has an interlocking mechanism for simultaneously controlling the lock and the release of right and left engaging mechanisms mounted at both sides of the seat and including right and left manipulating levers, auxiliary levers provided symmetrically at both sides of the seat, and an interlocking rod including hook formed at both ends thereof for engaging between the auxiliary levers of both sides. Thus, the interlocking mechanism can exactly transmit the manipulating force of the handle in the engaging portion between the interlocking rod end and the member engaged with the interlocking rod end without enhancing the dimensional accuracy.

Abstract: A process for producing an alumina sintered product is disclosed wherein the starting alumina mixture contains about 0.01 to 0.55% by weight of MgO and 0.5 to 5.5% by weight of Y.sub.2 O.sub.3. The process yields a sintered product having a porosity on the order of less than 0.1% by volume and an average crystal grain size of about 2 microns or less and is particularly suitable for use in high speed microfinish cutting.

Abstract: A sintered ceramic body for use in cutting tools which has an average crystal grain size of not more than about 2.mu. and comprises about 60 to 95% by volume of (a) Al.sub.2 O.sub.3 and the remainder being composed of (b) WC, provided that it may contain W.sub.2 C in which case the intensity ratio I.sub.W.sbsb.2.sub.C (101)/I.sub.WC (111) in X-ray diffraction using CuK.alpha. rays is not more than about 0.5, and (c) TiN, the volume ratio of components (b) to (c) being about 5:95 to 95:5.

Abstract: A ceramic cutting tip which is applicable to a cutting tool of a lathe, a milling machine and the like is disclosed. The ceramic cutting tip comprises a ceramic sintered body including at least a cutting blade portion covered with a metal coating having a thickness of 1-10 .mu.,wherein the metal employed in the metal coating is selected from the group consisting of nickel, cobalt, aluminum and copper.